Electric battery.



No. 737,613. i PATENTED SEPT. 1, 1903.

11. EALSEY. ELEGTEIO BATTERY.

APPLIOATIGN FILED DEU. 6. 1902.

NO MODEL.

Emmx

rev-1.

Ag loll UNTTED STATES Patented September 1, 1903;

PATENT OEEICE.

HENRY I-IALSEY, OE NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TOHALSEY ELECTRIC GENERATOR COMPANY, OE JERSEY CITY, NEW" JERSEY, ACORPORATION OF NEW JERSEY.

ELECTRIC BATTERY.

SPECIFICATION forming part of Letters Patent N o. 737,613, datedSeptember 1, 1903. Application tiled December 6, 1902. Serial No.134,147. (No model.)

To cir/ZZ whom it may concern:

Be it known that I, HENRY HALsEY, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and usefulImprovements in Electric Batteries,of which the following is afull, clear, and exact specification.

This invention relates to improvements in ro electric batteries, andespecially to that class of batteries containing mechanical means toprevent polarization.

The object of this invention is to provide a battery of simplemechanical construction x5 which shall be of increased electricalefficiency.

In batteries of this general class heretofore described by me one ormore ofthe elements is movable in the electrolyte to prevent pozolarization. In the batteries heretofore known the gases were allowed toescape from the electrolyte into the atmosphere and necessarily againstthe atmospheric pressure. In my present improvement the cell ishermetically sealed and the gases are exhausted from the cell by anair-pump. By this arrangement the disengagement and removal of gases arefacilitated, as there is not the atmospheric pressure to overcome.

3o In the drawings, Figure l is a longitudinal cross-sectional view, andFig. 2 is a transverse section on the line 2 2 of Fig. 1.

1 is the casing containing the cell.

2 is a hollow sleeve attached to the casing and carrying the shaft 3. Atthe upper end of the shaft is the hanger 4, to which the element 5 isattached. The shaft is rotated by gearing 16 17 from a motor 6.

7 is a porous diaphragm of absorbent ma- 4o terial outside of themovable element and attached to a hollow hanger connected by a pipe 9with an air-pump 10, by which the gases as they are formed are drawnthrough the porous element and out through the hanger 8 and pipe 9.

The element 11 is carried on the sleeve 2 and may be electricallyconnected with the element 'Zin any suitable manner, as by a wire 12.Connection with the other element is made through a brush on the shaft3. 5o

14C is a cover secured in any suitable manner, and 15 is a rheostat orother form of motor-controller.

The diaphragm. is composed of any substance not affected by theelectrolyte, such as asbestos, and has perforations to permitcirculation of the electrolyte. By the use of a porous diaphragm in apartial vacuum the gases willbe carried oft' more readily from thebottom, as they will be drawn into the 6o interstices of the diaphragmand directly up through it by the exhaust, which will not be strongenough to draw up the liquid.'

I consider it within the scope of my invention to exhaust the gases asthey rise from above the liquid without the use of the porous diaphragm;but the construction I have illustrated is my preferred form.

I do not wish to be limited to the exact construction shown in thedrawings, as my in- 7o vention is applicable to many other forms ofbatteries than that I have shown.

Having thus described my invention, I declare that what I claim as new,and desire to secure by Letters Patent, is-

1. In a battery, the combination with the elements and a mechanicaldepolarizer, of means for exhausting the gases from the interior of thebattery.

2. In a battery, a fixed element and a mov- 8o able element, means forexhausting gases formed in the battery comprising a porous diaphragm andan air-pump `connected with the diaphragm, substantially as described.

3. In a battery, the combination with a mechanical depolarizer and meansfor controlling it, of moans for exhausting the gases formed in thebattery.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY HALSEY. Vitnesses:

JULIAN S. Woos'rnn, HENRY Basta

